Bug 513738

Summary: Kwin crashes after SDDM and start of kde
Product: [Plasma] kwin Reporter: Bjarke <bkjoh>
Component: generalAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: crash CC: kdedev
Priority: NOR Keywords: drkonqi
Version First Reported In: 6.5.4   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report: https://crash-reports.kde.org/organizations/kde/issues/325213/events/4aa4126aa5cd432693711e840b1ac08f/

Description Bjarke 2025-12-23 11:19:28 UTC 
Application: kwin_wayland (6.5.4)

ApplicationNotResponding [ANR]: false
Qt Version: 6.10.1
Frameworks Version: 6.21.0
Operating System: Linux 6.17.12-300.fc43.x86_64 x86_64
Windowing System: Wayland
Distribution: "Fedora Linux 43 (KDE Plasma Desktop Edition)"
DrKonqi: 6.5.4 [CoredumpBackend]

-- Information about the crash:
After upgrading to fedora43 it crashes after login. 3-times kwin reports, but it seems to be the same error.

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin_wayland), signal: Segmentation fault


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  <ima:ignore>
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warning: Can't open file /memfd:JITCode:QtQml (deleted) during file-backed mapping note processing

warning: Can't open file /dev/shm/.org.chromium.Chromium.nWzkl1 (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:wayland-shm (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:JSGCHeap:QtQml (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:JSVMStack:QtQml (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:kwayland-shared (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:unknown-usage:QtQml (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:wayland-cursor (deleted) during file-backed mapping note processing

warning: Can't open file /dev/shm/.org.chromium.Chromium.fIeeai (deleted) during file-backed mapping note processing
[New LWP 9024]
[New LWP 9034]
[New LWP 9029]
[New LWP 9059]
[New LWP 13872]
[New LWP 13869]
[New LWP 9033]
[New LWP 13871]
[New LWP 13870]
[New LWP 13989]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/bin/kwin_wayland --wayland-fd 7 --socket wayland-0 --xwayland-fd 8 --xwayland-fd 9 --xwayland-display :0 --xwayland-xauthority /run/user/1000/xauth_aPLUVR --xwayland'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f09b7c813cc in __pthread_kill_implementation () from /lib64/libc.so.6
[Current thread is 1 (Thread 0x7f09b109df00 (LWP 9024))]
[Current thread is 1 (Thread 0x7f09b109df00 (LWP 9024))]

Thread 10 (Thread 0x7f09a0cb66c0 (LWP 13989)):
#0  0x00007f09b7c87982 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f09b7c7bc3c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f09b7c7c2ac in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f09b7c7eb88 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f09b84da1a3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f09b842fe9c in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f09b84d19ae in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f09b7c7f464 in start_thread () from /lib64/libc.so.6
#8  0x00007f09b7d025ac in __clone3 () from /lib64/libc.so.6

Thread 9 (Thread 0x7f0975d016c0 (LWP 13870)):
#0  0x00007f09b7c87982 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f09b7c7bc3c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f09b7c7c2ac in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f09b7c7eb88 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f09b84da1a3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f09b842fe9c in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f09b84d19ae in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f09b7c7f464 in start_thread () from /lib64/libc.so.6
#8  0x00007f09b7d025ac in __clone3 () from /lib64/libc.so.6

Thread 8 (Thread 0x7f09755006c0 (LWP 13871)):
#0  0x00007f09b7c87982 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f09b7c7bc3c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f09b7c7c2ac in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f09b7c7eb88 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f09b84da1a3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f09b842fe9c in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f09b84d19ae in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f09b7c7f464 in start_thread () from /lib64/libc.so.6
#8  0x00007f09b7d025ac in __clone3 () from /lib64/libc.so.6

Thread 7 (Thread 0x7f09a1f356c0 (LWP 9033)):
#0  0x00007f09b7c87982 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f09b7c7bc3c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f09b7c7c2ac in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f09b7c7e97e in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f099934bf1d in cnd_wait () from /lib64/libgallium-25.2.7.so
#5  0x00007f099930553c in util_queue_thread_func () from /lib64/libgallium-25.2.7.so
#6  0x00007f099934be4c in impl_thrd_routine () from /lib64/libgallium-25.2.7.so
#7  0x00007f09b7c7f464 in start_thread () from /lib64/libc.so.6
#8  0x00007f09b7d025ac in __clone3 () from /lib64/libc.so.6

Thread 6 (Thread 0x7f0967fff6c0 (LWP 13869)):
#0  0x00007f09b7c87982 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f09b7c7bc3c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f09b7c7c2ac in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f09b7c7eb88 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f09b84da1a3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f09b842fe9c in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f09b84d19ae in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f09b7c7f464 in start_thread () from /lib64/libc.so.6
#8  0x00007f09b7d025ac in __clone3 () from /lib64/libc.so.6

Thread 5 (Thread 0x7f0965dff6c0 (LWP 13872)):
#0  0x00007f09b7c87982 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f09b7c7bc3c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f09b7c7c2ac in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007f09b7c7eb88 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007f09b84da1a3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007f09b842fe9c in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007f09b84d19ae in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f09b7c7f464 in start_thread () from /lib64/libc.so.6
#8  0x00007f09b7d025ac in __clone3 () from /lib64/libc.so.6

Thread 4 (Thread 0x7f098b7bd6c0 (LWP 9059)):
#0  0x00007f09b7c87982 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f09b7c7bc3c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f09b7c7bc84 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007f09b7cf56c6 in ppoll () from /lib64/libc.so.6
#4  0x00007f09b6ea02e0 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#5  0x00007f09b6ea03a3 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#6  0x00007f09b861e80d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#7  0x00007f09b8309063 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#8  0x00007f09b842bdc6 in QThread::exec() () from /lib64/libQt6Core.so.6
#9  0x00007f09b84d19ae in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#10 0x00007f09b7c7f464 in start_thread () from /lib64/libc.so.6
#11 0x00007f09b7d025ac in __clone3 () from /lib64/libc.so.6

Thread 3 (Thread 0x7f09a31ff6c0 (LWP 9029)):
#0  0x00007f09b7c87982 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f09b7c7bc3c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f09b7c7bc84 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007f09b7cf56c6 in ppoll () from /lib64/libc.so.6
#4  0x00007f09b6ea02e0 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#5  0x00007f09b6ea03a3 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#6  0x00007f09b861e80d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#7  0x00007f09b8309063 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#8  0x00007f09b842bdc6 in QThread::exec() () from /lib64/libQt6Core.so.6
#9  0x00007f09b9455ae1 in QDBusConnectionManager::run() () from /lib64/libQt6DBus.so.6
#10 0x00007f09b84d19ae in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007f09b7c7f464 in start_thread () from /lib64/libc.so.6
#12 0x00007f09b7d025ac in __clone3 () from /lib64/libc.so.6

Thread 2 (Thread 0x7f09a169b6c0 (LWP 9034)):
#0  0x00007f09b7c87982 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007f09b7c7bc3c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007f09b7c7bc84 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007f09b7cf56c6 in ppoll () from /lib64/libc.so.6
#4  0x00007f09b6ea02e0 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#5  0x00007f09b6ea03a3 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#6  0x00007f09b861e80d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#7  0x00007f09b8309063 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#8  0x00007f09b842bdc6 in QThread::exec() () from /lib64/libQt6Core.so.6
#9  0x00007f09b84d19ae in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#10 0x00007f09b7c7f464 in start_thread () from /lib64/libc.so.6
#11 0x00007f09b7d025ac in __clone3 () from /lib64/libc.so.6

Thread 1 (Thread 0x7f09b109df00 (LWP 9024)):
[KCrash Handler]
#4  0x00007f099a091d0d in gm200_validate_sample_locations () from /lib64/libgallium-25.2.7.so
#5  0x00007f099a094841 in nvc0_state_validate () from /lib64/libgallium-25.2.7.so
#6  0x00007f099a094a1f in nvc0_state_validate_3d () from /lib64/libgallium-25.2.7.so
#7  0x00007f099a015993 in nvc0_blit_3d () from /lib64/libgallium-25.2.7.so
#8  0x00007f099a018eeb in nvc0_blit () from /lib64/libgallium-25.2.7.so
#9  0x00007f09991761f0 in do_blit_framebuffer () from /lib64/libgallium-25.2.7.so
#10 0x00007f0999176bc5 in _mesa_BlitFramebuffer () from /lib64/libgallium-25.2.7.so
#11 0x00007f09bb199b83 in KWin::GLFramebuffer::blitFromFramebuffer(QRect const&, QRect const&, unsigned int, bool, bool) () from /lib64/libkwin.so.6
#12 0x00007f09bb199ebc in KWin::GLFramebuffer::blitFromRenderTarget(KWin::RenderTarget const&, KWin::RenderViewport const&, QRect const&, QRect const&) () from /lib64/libkwin.so.6
#13 0x000055995d616a01 in KWin::BlurEffect::blur(KWin::RenderTarget const&, KWin::RenderViewport const&, KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) ()
#14 0x000055995d617f9b in KWin::BlurEffect::drawWindow(KWin::RenderTarget const&, KWin::RenderViewport const&, KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) ()
#15 0x00007f09bb0ed92c in KWin::EffectsHandler::drawWindow(KWin::RenderTarget const&, KWin::RenderViewport const&, KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /lib64/libkwin.so.6
#16 0x000055995d66e159 in KWin::SlidingPopupsEffect::paintWindow(KWin::RenderTarget const&, KWin::RenderViewport const&, KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) ()
#17 0x00007f09bb0ed84f in KWin::EffectsHandler::paintWindow(KWin::RenderTarget const&, KWin::RenderViewport const&, KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /lib64/libkwin.so.6
#18 0x00007f09bb0ed84f in KWin::EffectsHandler::paintWindow(KWin::RenderTarget const&, KWin::RenderViewport const&, KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /lib64/libkwin.so.6
#19 0x00007f09bb232ccf in KWin::WorkspaceScene::paintWindow(KWin::RenderTarget const&, KWin::RenderViewport const&, KWin::WindowItem*, int, QRegion const&) () from /lib64/libkwin.so.6
#20 0x00007f09bb232fbe in KWin::WorkspaceScene::paintSimpleScreen(KWin::RenderTarget const&, KWin::RenderViewport const&, int, QRegion const&) () from /lib64/libkwin.so.6
#21 0x00007f09bb0ed765 in KWin::EffectsHandler::paintScreen(KWin::RenderTarget const&, KWin::RenderViewport const&, int, QRegion const&, KWin::Output*) () from /lib64/libkwin.so.6
#22 0x00007f09bb0ed765 in KWin::EffectsHandler::paintScreen(KWin::RenderTarget const&, KWin::RenderViewport const&, int, QRegion const&, KWin::Output*) () from /lib64/libkwin.so.6
#23 0x00007f09bb2330f5 in KWin::WorkspaceScene::paint(KWin::RenderTarget const&, QRegion const&) () from /lib64/libkwin.so.6
#24 0x00007f09bb20d2a3 in KWin::SceneView::paint(KWin::RenderTarget const&, QRegion const&) () from /lib64/libkwin.so.6
#25 0x00007f09bb06b693 in KWin::renderLayer(KWin::RenderView*, KWin::Output*, std::shared_ptr<KWin::OutputFrame> const&, QRegion const&) [clone .isra.0] () from /lib64/libkwin.so.6
#26 0x00007f09bb06fc61 in KWin::Compositor::composite(KWin::RenderLoop*) () from /lib64/libkwin.so.6
#27 0x00007f09b836759a in void doActivate<false>(QObject*, int, void**) () from /lib64/libQt6Core.so.6
#28 0x00007f09bb094a6a in KWin::RenderLoop::frameRequested(KWin::RenderLoop*) () from /lib64/libkwin.so.6
#29 0x00007f09b8358f55 in QObject::event(QEvent*) () from /lib64/libQt6Core.so.6
#30 0x00007f09b963db9f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#31 0x00007f09b82fc4e8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6
#32 0x00007f09b84d01f8 in QTimerInfoList::activateTimers() () from /lib64/libQt6Core.so.6
#33 0x00007f09b84d456b in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#34 0x00007f09b90fe5d2 in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Gui.so.6
#35 0x00007f09b8309063 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#36 0x00007f09b8304819 in QCoreApplication::exec() () from /lib64/libQt6Core.so.6
#37 0x000055995d5d4a49 in main ()

Reported using DrKonqi
Comment 1 TraceyC 2025-12-23 18:25:14 UTC 
This is crashing in the gallium driver. Can you report this to mesa please.
https://docs.mesa3d.org/bugs.html

*** This bug has been marked as a duplicate of bug 512777 ***